Home / 130,455.17-195,710.64-40,495.90

Finding the Fourth Proportional to 130,455.17, 195,710.64 and 40,495.90

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Solution

The fourth proportional to 130,455.17, 195,710.64 and 40,495.90 is: 60,752.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,455.17 : 195,710.64 = 40,495.90 : x
  2. Step 2: Convert to fraction form
    130,455.17/195,710.64 = 40,495.90/x
  3. Step 3: Cross multiply
    130,455.17x = 195,710.64 × 40,495.90
  4. Step 4: Simplify right side
    130,455.17x = 7,925,478,303.90
  5. Step 5: Solve for x
    x = 7,925,478,303.90/130,455.17
  6. Step 6: Final answer
    x = 60,752.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.